Rudomi seidl



R. SEI

TOY SUB APPLICATION FILE MARINE.

Patented June 10, 1919.

RUDOLF SEIDL, or MINNEAPOLIS, MINNESOTA.

TOY SUBMARINE.

Specification of Letters Patent.

Patented June 10, 1919.

Application filed April 6, 1917. Serial No. 160,162.

I To all whom it may concern:

Be it known that I, RUDoLr SEIDL, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Toy Submarines, ofwhich the following is a specification.

The invention has for its object the provision in a toy boat of simple, inexpensive,

efficient mechanism so arranged and operated as to cause the boat to navigate upon and beneath the surface of a body of water, successively diving and rising and at times running on an even keel both afloat and submerged. I r

A preferred embodiment of the invention is set forth in the accompanying drawing and described in detail in that portion of the specification following. However, the invention is obviously susceptible of embodiment in varied constructional forms without departure from the essence thereof 'as set forth in the appended claims, wherefore the drawing and description are tobe taken in an illustrative and not in an unnecessarily limiting sense. In the drawings- Figurel is a partial vertical longitudina section through a toy submarine-embodying the invention; and I Fig. 2 is a top plan view of the same. Having reference to the drawings, the hull of the boatis indicated at 11, chambered out at 12 to receive the operating mechanism access to which is given through the opening 13 closed by the cork stopper 1 1. In order to provide for stability the weight ofthe mechanism is naturally below a me dian line, additional weight along the keel being provided at 15 and 16, while a conning tower 17 is provided having an interior of cork or other lighter material. An upper fin 19 is also arranged longitudinally of the upper surface of the hull while thin metal fins 20 are arranged beneath the stern on each side of the propeller. As an additional embellishment a periscope 21 may be pro vided as also a flag staff 22. I

V For convenience in manufacture and assemblage the device is here shown as having the hull constituted of a central cylindrical open-ended portion 23 with a forward; wood portion 24 fitted into the metal cylinder, while aft a wooden portion 25, is joined to the closed end of thecylinder.

Within thechamber 12 is disposed a collapsible rubber ball 26 the interior of which has unobstructed communication with the exterior of the hull below the water line through a channel 27 forwardly projecting.

In the after portion of the chamber 12 is mounted the clock mechanism including a wlnding arbor 28 accessible through the opening 13, the spring 29, the crank shaft 30, and the train of gearing ending in the pinion 31 fixed upon the propeller shaft 32, all of the parts being supported in suitable bearings. To the crank portion of the shaft '30 is connected a plunger rod 33 bearing upon its forward end the plunger head 34: which in the retracted position bears against the surface of the expanded ball 26 and which serves as the crank shaft moves through 180 degrees to collapse the ball 26. Fixed upon the plunger rod 33 at 35 are a pair of wires 36 rearwardly extending and joined at their rear ends by a transversely arranged weight 37. 7

Although the shaft 32 of the propeller 38 may fit snugly within its journal or suitable stufiing boxes may be provided, yet to sim plify the construction and provide for the discharge of water entering through the bearings, a drain port 39is advantageously provided in the bilge and closed by the stopper 10. At intervals, the boat may be removed from the water and the stopper 40 1 taken out permitting any water Within the hull to be discharged at 39.

In operation, the clock mechanism having been wound through the opening 13, the stopper 14 is placed in position sealing the hull against the entrance of water when submerged. With the parts in the position shown in Fig. 1, the boat will float upon the surfaceuntil the plunger head 34 moves forward to the extreme limit of its stroke and begins its rearward movement whereupon water is drawn in through the channel 27 to the interior of the bulb or ball 26 thus increasing the specific gravity of the boat and causing the same to settle lower in the water. The filling of the bulb 26 will cause the bow of the boat to incline downward by reason of the body of water within the bulb being slightly forward of the center of gravity, and as the boat is movin forward under the impetus of the propel or 38 the ing for the additional weight of water in the bulb 26, the weight 37 being moved aft of the center of gravity tea greater or less d18- tance corresponding to the amount of water taken into the bulb 26. The shiftingo'ftliis counterweight 37 is slightly disproportione ate to the amount of Water taken into "the bulb 26, so that during. the time that the bulb is filling there will be a slight preponderanc'e of Weight forward of the center of gravity and. when the same is completely filled there will be a slight preponderance of weight aft of the center of gravity, whereby the prow of the boat will be tilted downward when diving and upward when rising.- V

Afterthe plunger head 34 has movedvto the extreme rear' limit ofitsstroke, the direction of movement is'reversed and it progressively collapses the bulb- 26 expelling the water thereti'om through the channels 27, decreasing the specific gravity of the boat and causingthe same to rise to the surface. l V

It will be observed-that a very inexpensive construction is provided; closely simulating a submarinein its appearanceand action, the boat successively traveling: upon the surface and below the snrlt'ace of the water diving and rising a number oftimes with one winding of the splin Iclaim-z l. a device ofthe-class described, the V combination of a hull having an interior chamber, a. collapsible container therein having a-Qchannel communicating with;1the exteiior; below the water line,; a propeller. and mechanism for drivingfthe propeller and alternately collapsing and expanding the container wherebytoalter the specific gram ityot the hull.

2. In a device of theiclassadescribed, the combination of a jlru l-l having, aninterior chamber, a collapsible container therein having a channel'commimicating with the exterior below the Water line,- a" propeller, and mechanism for driving the propeller anda-lterna-tely collapsing and expanding. the container whereby to: alter the specific grav ityv of the hullysaid-container beinglofi the center of gravity of the laden hull; a counter-- weight at I the opposite side of the center of gravity and i shifta'ble'hy thesa-idmechanism in the act of collapsing and expanding-the containerto compensate therefor.

3-. In a devicfeof the classadescribed; the combination of a hullhavingi an interiorchamben a collapsiblecontainer therein hav ing a channel communicating wine the ex:

teriorbelow the waterv line;- a-propeller, and mechanism for: driving the propeller and alternatelycollapsing; and expanding the container whereby, to alter: the specific gravity of the hull, said container beingioft' the centerof gravity: of the ladenhull, a counter weight at the opposite side o fthe center of avity and shiiftable by the said mechanism 'HFllllB act ofcol'lapsi-ng and expanding the container to compensate therefor, the shift in'g ofthe counterweight being slightly disalternately collapsing and expanding the container whereby :to alter "the/specific zgravity of the hull, said mechanism including a plunger arranged to act on :the container to alternately discharge the .contents'rthereo-f and to permit the same to fillHIlPGIl the'reversalofits stroke. 7

5t I'n a device of the: class: described, the

combination. of a sealed hull- ?having airinterior chamber- 5a: collapsiblehrnbben bll lb r therein having a pipe leading to the'lower exterior portion thereof below the water line a propeller, ,aplunge'r': arranged to act i on the bulb to collapse the sameandther'eatter to vpermit it to expandyand clock" mechanism to drive thepropeller and/to periodically presstthe plunger-against zthe 7 teriorchamben ai-collapsible*Prn-bber bulb therein having :pipel leading to the iqwel exterior portion theneof belem the water line; a propeller, .ai plunger ged tQ-f2tt on the bulb to collapse thesame' anc lgthere-- after. togpermit it: to expand; and clock mechanism to drive'the p ropellen'and to" pemodioally press-the p1unge" against the;

bulb; and counterweight sl 7 clock mechamsm forward and aft to' coinpens-ate for the change oi the tamer-0r ew nltabi-e by the H i 7 ity due to thecollapsing and expanding of the bulb; r

7. In a deviceof 'the described '7 combination ofa sealedhu li having'an -in terior chamber, collapsible rnbber hrilb therein having a pipe leading in the lower exteriorpcrticnthereorbelcw chewatennne, a propeller, a plungen'arranged toact on tlie= bulb to collapsethe same? and" thereafter to permit it to expand; and clock mechanism to drive the propeller-and ;to* periodically? press the plunger againsti the bu-lbgand acounterweight shiftab1e=by*the clockmeclianism forward and ait to compensate forthe change of th'ecenter of gravitydne fttj' the collapsing and expanding"'fof "the; b u'lhy; the shifting' oji' the connter weight being slightly disproportionate to the enter of; whereby to til-tthe prow;downward when diving and upward-when ri'sing:

8. In a device of the class described, the combination of a hull having an interior chamber, a collapsible rubber bulb therein having a pipe leading to the exterior portion thereof below the water line, clock mechanism including a spring, a winding arbor, a train of gears, and a crank shaft, a propeller driven by the gears, a plunger rod connected to the crank shaft, a plunger head on the rod and arranged to bear on the bulb and on its forward stroke to collapse the bulb and upon its return stroke to permil; the bulb to expand.

9. In a device of the class described, the combination of a hull having an interior chamber, means therein to vary the specific gravity of the laden hull, a propeller, and clock mechanism for driving the propeller and for varying the specific gravity of the hull below and above the critical point 1 whereby to cause the same to successively V submerge and emerge.

10. In a device of the class described, the combination of a hull having an interior chamber, collapsible and expansible means therein to vary the specific gravity of the laden hull, a propeller, and clock mechanism for driving the propeller and for varying the specific gravity of the hull below and above thecritical point 1 whereby to cause the same to successively submerge and emerge.

11. In a device of the class described, the combination of a hull having an interior chamber, collapsible and expansible means therein to vary the specific gravity of the laden hull, a propeller, and clock mechanism for driving the propeller and for varying the specific gravity, the hull having a conning tower of relatively light material to maintain stability.

12. In a device of the class described, the combination of a hull having an interior chamber, means therein to vary the specific gravity of the laden hull, below and above the critical point 1 whereby to cause the same successively to submerge and emerge, a propeller, and clock mechanism for driving the propeller and for varying the specific gravity, the hull having an upper opening affording access to the clock mechanism, and a closure stopper for said opening.

13. In a device of the class described, the

combination of a hull having an interior chamber, means therein to vary the specific gravity of the laden hu'll, below and above the critical point 1 whereby to cause the same successively to submerge and emerge, a propeller, and clock mechanism for driving the propeller and for varying the specific gravity, and a drain port in the bilge, and a closure therefor.

14:. In a device of the class described, the combination of a hull having an interior chamber, collapsible and expansible means therein to vary the specific gravity of the laden hull, a propeller, and clock mechanism for driving the propeller and for varying the specific gravity, the hull having a conning tower of relatively light material to maintain stability and an upper opening affording access to the clock mechanism, a closure for said opening, a drain port in the bilge, and a closure therefor.

15. A toy submarine embodying a hull, continuously operatin power driven means for varying the speci 'c gravity of the hull whereby to cause the same periodically to sink and rise.

16. A. toy submarine embodying a hull, continuously operatin power driven means for varying the speci c gravity of the hull whereby to cause the same periodically to sink and rise, and mechanical means acting to depress and elevate slightly the forward end of the hull according as the same is sinking or rising.

17. A toy submarine embodying a hull, continuously operating power driven means for varying the specific gravity of the hull whereby to cause the same periodically to sink and rise, and means periodically to shift the center of gravity of the hull longitudinally thereof to depress and elevate slightly the forward end of the hull according as the same is sinking or rising.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

RUDOLF SEIDL.

Witnesses:

F. C. BLODGETT, GOLDIE SAPIRO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

